/*
 * Created on Sep 22, 2008
 * Created by Paul Gardner
 * 
 * Copyright (C) Azureus Software, Inc, All Rights Reserved.
 * 
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */


package torrentlib.customization;

import java.io.BufferedInputStream;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipInputStream;

import torrentlib.Debug;

import torrentlib.customization.Customization;
import torrentlib.customization.CustomizationException;

public class 
CustomizationImpl 	
	implements Customization
{
	private CustomizationManagerImpl		manager;
	
	private String		name;
	private String		version;
	private File		contents;
	
	protected
	CustomizationImpl(
		CustomizationManagerImpl	_manager,
		String						_name,
		String						_version,
		File						_contents )
	
		throws CustomizationException
	{	
		manager		= _manager;
		name		= _name;
		version		= _version;
		contents	= _contents;
		
		if ( !contents.exists()){
			
			throw( new CustomizationException( "Content file '" + contents + " not found" ));
		}
	}
	
	public String
	getName()
	{
		return( name );
	}
	
	public String
	getVersion()
	{
		return( version );
	}
	
	protected File
	getContents()
	{
		return( contents );
	}
	
	public Object
	getProperty(
		String		name )
	{
		return( null );
	}
	
	public boolean
	isActive()
	{
		return( true );
	}
	
	public void
	setActive(
		boolean		active )
	{
		// TODO:
	}
	
	public InputStream
	getResource(
		String		resource_name )
	{
		return( null );
	}
	
	public InputStream[]
   	getResources(
   		String		resource_name )
	{
		List	result = new ArrayList();
		
		ZipInputStream	zis = null;
	
		try{
			zis = new ZipInputStream( 
					new BufferedInputStream( new FileInputStream( contents ) ));
				
			while( true ){
				
				ZipEntry	entry = zis.getNextEntry();
					
				if ( entry == null ){
					
					break;
				}
				
				String	name = entry.getName();
				
				int pos = name.indexOf( resource_name + "/" );
				
				if ( pos != -1 ){
										
					if ( name.endsWith( ".vuze" )){
						
						ByteArrayOutputStream baos = new ByteArrayOutputStream( 16*1024 );
						
						byte[]	buffer = new byte[16*1024];
						
						while( true ){
						
							int	len = zis.read( buffer );
							
							if ( len <= 0 ){
								
								break;
							}
							
							baos.write( buffer, 0, len );
						}
						
						result.add( new ByteArrayInputStream( baos.toByteArray()));
					}
				}
			}
		}catch( Throwable e ){
			
			Debug.out( e );
			
		}finally{
			
			if ( zis != null ){
				
				try{
					zis.close();
					
				}catch( Throwable e ){
				}
			}
		}
		
		return((InputStream[])result.toArray( new InputStream[result.size()]));
	}
	
	public void 
	exportToVuzeFile(	
		File 		file )
	
		throws CustomizationException 
	{
		manager.exportCustomization( this, file );
	}
}
